(ii) ENGINE LIFE-LIMITED PARTS: in respect of the
 Life-Limited Parts for each Engine, an amount equal to
 the Engine LLP Supplemental Rent Rate for each Engine
 Cycle operated by that Engine during that calendar month
 ("Engine LLP Supplemental Rent"); provided, however,
 Lessee shall have no obligation to make any payment of
 Engine LLP Supplemental Rent in respect of any period
 during which the Engine installed on the Aircraft is
 subject to a maintenance cost per hour agreement or
 similar arrangement with the Agreed Maintenance
 Performer so long as (x) such agreement or arrangement
 is approved in advance (i.e., before the enrollment of
 the Engine installed on the Aircraft in any such
 agreement or arrangement) in writing by Lessor (such
 approval not to be unreasonably withheld), and (y) in
 the event that the Engine installed on the Aircraft is
 enrolled in any such agreement or arrangement before
 Lessor approves such agreement or arrangement, or in the
 event that any Engine enrolled in any such agreement or
 arrangement is to be installed on the Aircraft before
 Lessor approves such agreement or arrangement, then
 Lessee shall pay and continue to pay Engine LLP
 Supplemental Rent in accordance with this subclause for
 all periods prior to the time at which Lessee obtains
 Lessor's written approval (which approval shall not be
 unreasonably delayed) of the applicable agreement or
 arrangement (if ever);and (z) for the avoidance of doubt
 it is agreed that at least one of the criteria upon
 which such a maintenance cost per hour agreement will be
 approved by the Lessor shall be a requirement for that
 agreement to expressly include an adequate fund
 provision specifically allocated to LLP's to which the
 Lessor will have rights of access under certain
 conditions, and drawdowns on such LLP fund will not
 diminish the adequacy of any fund allocation applicable